In an acute inhalation toxicity study (MRID [number]), groups of young adult (strain) (species) (#/sex) were exposed by inhalation route to chemical name (% a.i.) in (name of vehicle if appropriate) for [#] hours to (nose only, head only or whole body) at concentrations of x, x, or x mg/L. Animals then were observed for [#] days.
LC50 Males = mg/L (95% C.I. if available)
Females = mg/L (95% C.I. if available)
Combined = mg/L (95% C.I. if available)
(or note if no mortality occurred, note if limit test)
(Chemical name) is classified as being of (LOW, SLIGHT, MODERATE, HIGH) Toxicity based on (males or females which ever is lower) [include EPA Toxicity Category I, II, III or IV if joint review]. Label comment if applicable.
(Include only major treatment related clinical signs, body weight or necropsy signs including onset and/or duration if any, or the following statement: There were no treatment related clinical signs, necropsy findings or changes in body weight.) Note if there was a NOAEL for clinical findings (for Acute reference dose consideration during subsequent risk assessment).